- PTAB · Jan 14, 2026 · IPR2025-00632 · APJ Mitchell G Weatherly · IPR · Remand
On remand, the Board reinstituted review of all challenged claims on all grounds after finding Petitioner sufficiently explained its differing claim-construction positions.
RulingsRemand decision- PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)InstitutedInstituted
“Id. The Director neither addressed the merits of Petitioner’s challenges nor found that our prior consideration of those merits was faulty. Accordingly, we understand that we need not reconsider our conclusion that Petitioner had demonstrated a reasonable likelihood of proving that claims 1, 2, 7–9, 11, 12, and 20–24 were unpatentable or that the merits of patentability set forth in the Petition warranted institution of inter partes review.” slip op. at 5
- BurdenDecided for petitioner
“The question before us, therefore, is whether the Petitioner’s proffered explanation that it has proposed a different claim interpretation before the Board because the District Court may decline to adopt the narrower claim interpretations it advocates there is sufficient. We find that Petitioner’s explanation is sufficient because it follows the Director’s exemplary logic. Whether a district court has already or might in the future decline to adopt constructions that a petitioner proposes in related district court litigation merely reflects the timing of when a dispute over claim interpretation will be resolved. The Director and Patent Owner both recognize that, to resolve the dispute over claim interpretation that exists here, a decision-maker must determine “a single claim construction that best captures the true meaning of the patent claim.” Remand 4; PO Remand Br. 3. Based on the record presented by the parties to date in this proceeding, no dispute exists that the disputed claim terms mean what Patent Owner says they mean in the Litigation. Accordingly, we find that, at this stage of the proceeding, it is undisputed that Patent Owner’s interpretations of the claim terms represent the “single claim construction that best captures the true meaning of the patent claim.”8 Under that claim interpretation, we” slip op. at 8
NonePatents in suitUS 11,835,421 - PTAB · Jun 25, 2025 · IPR2024-01280 · APJ Jo-Anne M Kokoski · IPR · Remand
On remand, the Board denied institution under § 314(a), finding the Fintiv factors favored denial despite declining to deny under § 325(d).
RulingsRemand decision- PTAB / AIA Trials › Discretionary denial › §325(d) same art / argumentsInstitution denied 325dDecided for petitioner
“Other than initials on a lengthy IDS, nothing in the record indicates that the Examiner substantively considered Takeuchi, Kim, Pienemann, or among over 1,000 other references listed on the IDS, which, as noted in the Director Review Decision, “is over 40 times the size of a typical IDS.” Pet. Remand Br. 5–6; DR Dec. 7 n.3 (citing Setting and Adjusting Patent Fees During Fiscal Year 2025, 89 FR 91898 at 91924 (Nov. 20, 2024)); Ex. 1002, 228–284. Petitioner also shows that the applicant did not respond to the Examiner’s request that the applicant specifically point out “any particular reference or portion of a reference in the [IDS] which the examiner should take [sic] pay particular attention to.” Ex. 1002, 174, 295– 302.” slip op. at 13
- PTAB / AIA Trials › Discretionary denial › Fintiv (parallel litigation)Institution denied fintivInstitution denied
“Patent Owner is likely correct that the ITC would not have been inclined to grant a stay if one had been requested at the time the Institution Decision issued. Moreover, the ITC conducted a full evidentiary hearing a month after the Institution Decision issued, and the target date for the ITC’s final determination is several months before the projected statutory deadline for the Board’s final written decision. PO Remand Br. 7. Accordingly, we determine that Fintiv factor 1 weighs in favor of discretionary denial. See also Klein Tools, Inc. v. Milwaukee Electric Tool Corp., IPR2024-01400, Paper 22 at 2 (PTAB June 9, 2025) (Acting Director Stewart determining that Fintiv factor 1 weighs in favor of discretionary denial when the ITC investigation is unlikely to be stayed, the ITC already conducted a full evidentiary hearing, and the ITC final determination is expected to issue six months before the statutory deadline for the Board’s final written decision).” slip op. at 19
Discretionary denialcites PhillipsPatents in suitUS 11,925,202 - PTAB · Jun 25, 2025 · IPR2024-01406 · APJ Jo-Anne M Kokoski · IPR · Remand
On remand, the Board denied institution of review of claims 1, 3, 4, 8–13, and 15 under § 314(a), finding the Fintiv factors favored discretionary denial.
RulingsRemand decision- PTAB / AIA Trials › Discretionary denial › Fintiv (parallel litigation)Denied
“stay or evidence exists that one may be granted if a proceeding is instituted.” Fintiv, Paper 11 at 6. A stay of litigation pending resolution of an inter partes review allays concerns about inefficiency and duplication of efforts, and strongly weighs against exercising our authority to deny institution. Fintiv, Paper 11 at 6. The Guidance Memo states that “the Board will apply the Fintiv factors when there is a parallel proceedings at the International Trade Commission.” Guidance Memo 2. Patent Owner asserts that a stay of the ITC Investigation had not been requested at the time of the Institution Decision,7 and argues that “the ITC does not stay investigations pending IPR.” PO Supp. Br. 4. Patent Owner also notes that the Institution Decision issued “just days before the ITC evidentiary hearing.” Id. Accordingly, Patent Owner argues that this factor favors denial. Id. Patent Owner is likely correct that the ITC would not have been inclined to grant a stay if one had been requested at the time the Institution Decision issued. Moreover, the ITC conducted a full evidentiary hearing less than three weeks after the Institution Decision issued, and the target date for the ITC’s final determination is four months before the statutory deadline for the Board’s final written decision. PO Supp. Br. 5. Accordingly, we” slip op. at 9
Discretionary denialPatents in suitUS 11,925,202 - PTAB · Oct 7, 2022 · IPR2021-00680 · APJ David C Mckone · IPR · Final written decision
Claims 1–3, 5, 7, 9–11, 14–16, 19, 21, 32–37, 39, 47, and 49–57 are unpatentable as obvious; the remaining challenged claims were not shown unpatentable.
Nonecites KSR · GrahamPatents in suitUS 10,469,934 - PTAB · Sep 21, 2020 · IPR2019-00846 · APJ Jennifer Meyer Chagnon · IPR · Final written decision
Claims 3 and 4 are cancelled, and substitute claims 12 and 13 are added; Petitioner did not prove the substitute claims obvious over the asserted combinations.
RulingsFinal written decision- Skill levelSkill level petitioner adoptedDecided for petitioner
“understanding of a person of ordinary skill in the art at the time of the invention. Graham, 383 U.S. at 17. Dr. Ducharme testifies that a person of ordinary skill in the art “would have had at least an undergraduate degree in mechanical engineering, or equivalent education, training, or experience, with at least two years of experience with [Unmanned Aeriel Vehicles (UAV)].” Ex. 1003 ¶ 72. Dr. Reinholtz testifies that a person of ordinary skill in the art “would have had a bachelor’s degree in mechanical engineering and at least two years of experience designing mechanisms and mechanical structures of the type used in releasable couplings and locking devices. Additional education could substitute for professional experience and significant work experience could substitute for formal education.” Ex. 2001 ¶ 28. Dr. Reinholtz acknowledges that he does not view “Dr. Ducharme’s proposed definition as substantially different from [his own].” Ex. 2001 ¶ 30. We agree and note that our consideration of the issues presented does not turn on which proposed definition is applied. Dr. Ducharme and Dr. Reinholtz also acknowledge that their respective testimony would remain the same regardless of which of these definitions of a person of ordinary skill in the art is applied. See Ex. 1028 ¶ 23; Ex. 2001 ¶ 30. In any event, for purposes of this Final Written Decision, we adopt Petitioner’s description of a person of ordinary skill in the art, while maintaining our prior determination (Inst. Dec. 10) that the prior art reflects the appropriate level of skill at the time of the claimed invention. See Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001).” slip op. at 12
- Claim Construction › Intrinsic evidence (Phillips canons) › Plain and ordinary meaning to a POSITATerm construed petitioner constructionDecided for petitioner
“1. “lugs” and “notches” Claim 1 recites, inter alia, “the shaft lock portion defining notches configured to engage corresponding lugs on the blade lock portion.” Ex. 1001, 6:7–9 (emphasis Petitioner’s (Pet. 23)). In the Institution Decision, we construed “lugs” and “notches,” in accordance with Petitioner’s proposal, as “projections” and “indentations,” respectively. See Inst. Dec. 12; Pet. 24; Ex. 1003 ¶ 86. The parties do not dispute this construction in their subsequent briefing, and we discern no reason to change this construction based on the complete record of this proceeding. Therefore, we maintain our prior construction for purposes of this Final Written Decision.” slip op. at 15
- PTAB / AIA Trials › Motions to amend / substitute claimsMotion to amend, grantedGranted
“claims.” 35 U.S.C. § 316(d)(1)(B); see 37 C.F.R. § 42.121(a)(3) (“A motion to amend may cancel a challenged claim or propose a reasonable number of substitute claims.”). Patent Owner proposes two substitute claims in place of two challenged claims. Revised Mot. Amend 1, 27. “There is a rebuttable presumption that a reasonable number of substitute claims per challenged claim is one (1) substitute claim.” Lectrosonics, Paper 15 at 4; see 37 C.F.R. § 42.121(a)(3). Petitioner does not argue otherwise. See generally Opp. Therefore, we determine that the amendments propose a reasonable number of substitute claims.” slip op. at 18
- Obviousness (§103) › Motivation to combine / reasonable expectation of success › HindsightMotivation not foundNot shown unpatentableNot shown unpatentable
“screwed onto the wrong driveshaft, when using a conventional threaded attachment mechanism (such as that described in Sasaki) is actually “mistake-proof.” Based on the evidence of record, we determine that it is not. Or, in other words, we determine that the conventional threaded attachment mechanism taught by Sasaki does not teach the Engagement Limitation (i.e., it does not prevent the clockwise lock mechanism from “be[ing] engaged in” the counterclockwise lock mechanism). According to Patent Owner, “the conventional screw-on type blade attachment mechanism does not prevent the attachment of a blade to the wrong drive.” Revised Mot. Amend 15 (citing Ex. 2001 ¶¶ 52–54, 59). Patent Owner contends that “it is relatively easy to attach a blade on the wrong drive on a UAV that utilizes the conventional screw-on type connection mechanism.” Id. (citing Ex. 2001 ¶¶ 52–54); see also Ex. 2006 (video created by Dr. Reinholtz demonstrating that a blade can be attached to the wrong drive using a screw-on type attachment mechanism). In its Reply, Patent Owner argues, again relying on the testimony of Dr. Reinholtz, that “[w]ith a conventional threaded attachment mechanism, when a blade is screwed onto the wrong driveshaft, the blade becomes engaged in the lock mechanism.” Reply 2 (citing Ex. 2016 ¶¶ 20–24). Petitioner, on the other hand, relying on the testimony of Dr. Ducharme, contends that “[w]hen a blade is forced onto the driveshaft and the threads are ‘stripped’, the blade is not, and cannot be, ‘engaged’ with the lock mechanism”; “[r]ather, the metal threads on the shaft lock portion are likely carving out new notches in the blade lock portion.” Opp. 12 (citing Ex. 1028 ¶ 49). According to Patent Owner, however, the “[i]ntent of the UAV designer is not a part of the Engagement Limitation.” Reply 2; see id. (noting that “Petitioner’s position appears to be premised on the incorrect notion that the Engagement Limitation requires the engagement of lock mechanism components in the precise way that is intended by the designer of the UAV”). Patent Owner contends that to “be engaged in,” as properly construed, “include[s] the type of connection between threads when a blade is screwed onto the wrong driveshaft.” Id. at 3. As we have construed it, to “be engaged in” merely requires “being interlocked.” See supra Section II.C.2. Relying on testimony of Dr. Reinholtz, Patent Owner further contends that “when a blade is screwed onto the wrong driveshaft, the threads on the blade mate or interlock with the threads on the driveshaft.” Reply 3 (citing Ex. 2016 ¶¶ 20, 23–24); see also Tr. 31:8–12 (“[A]s Dr. Reinholtz explains [at Ex. 2016 ¶ 23], that when a blade is misthreaded, a mechanical connection is created by engagement between the threads either because threads on the blade are deformed around threads on the shaft or threads on the shaft carved through threads on the blade.”). As shown in Dr. Reinholtz’s video, when the blades are screwed onto the wrong driveshaft, the blade and shaft are locked together (i.e., “interlocked” or “engaged”). Ex. 2006; see also Ex. 2001 ¶ 54 (describing the video, and indicating that the incorrectly installed blades “do not fall off” and are “securely attached”).” slip op. at 32
Claim construction§ 103 obviousnesscites Phillips · KSR · GrahamPatents in suitUS 9,260,184 - PTAB · Nov 14, 2016 · IPR2015-01243 · APJ Grace Karaffa Obermann · IPR · Final written decision
Petitioner failed to prove claims 1–8, 10, and 11 of the ’290 patent, claims 1–8 and 10–13 of the ’173 patent, and claims 1–6 and 8–19 of the ’510 patent obvious over Fohr, Sato, and …
RulingsFinal written decision- Obviousness (§103) › Motivation to combine / reasonable expectation of successNot shown unpatentableMotivation not foundNot shown unpatentable
“We recognize that it may be necessary “to look to interrelated teachings of multiple patents . . . in order to determine whether there was an apparent reason to combine the known elements in the fashion claimed.” KSR Int’l, 550 U.S. at 418. Petitioner in these proceedings, however, directs us to no persuasive reason why an ordinary artisan would have turned to the heat-retaining battery module of Hallaj when working to implement a plurality of Sato’s cells in a pack to replace the capacitors in Fohr. Pet. 36–38 (nowhere addressing that critical point); Reply 13 (devoting four sentences to rebuttal of Patent Owner’s persuasive evidence that one would not have combined the disclosures of Hallaj, Fohr, and Sato in the manner claimed); see Ex. 1033, 15 (Examiner’s observation, in confirming the patentability of the challenged claims during reexamination, that Sato contains “no information as to how Sato’s cells would be implemented in a pack”). We view Petitioner’s unexplained leap from the single battery cell of Sato to the heat-retaining battery module of Hallaj as a classic example of impermissible hindsight reconstruction driven not by any teaching in the prior art, but by the claim requirement of a “plurality” of cells implemented in a battery pack. Pet. 36–38; Reply 13. Patent Owner, by contrast, comes forward with persuasive evidence, which we credit, showing that one of ordinary skill in the art would not have been led to arrange a plurality of Sato’s cells in the heat-retaining battery module of Hallaj because such a modified battery pack would have been unsuitable for use as a replacement for the capacitors in Fohr. Specifically, we credit the testimony of Dr. Blomgren, who cogently explains why a person of ordinary skill in the art would not have been led to the proposed modification. Ex. 2147 ¶¶ 79–85.” slip op. at 17
- Expert testimonyPatent owner expert creditedPetitioner expert discountedDecided for patent owner
“We are not persuaded by Dr. Riley’s testimony that Fohr effectively teaches that both lithium-based battery cells and capacitors can achieve the 20 Amp Limitation, on a theory that “it’s actually the tool that draws the power” and “the right lithium cell” would be “a drop in replacement for this application.” Ex. 2169, 121:12–16 (Dr. Riley’s deposition testimony); Resp. 17. Dr. Riley readily admitted an unfamiliarity with capacitors, and identified no suitable “drop in” ready lithium cells available at the time of the invention. Ex. 2169, 121:11–122:4 (“[I]f I had a cell that could do similar things, I’d certainly swap it in there.”). On that point, we find more credible Dr. Blomgren’s testimony that “there is no guarantee that a given pack of battery cells can provide the current that a tool tries to draw.” Resp. 17 (citing Ex. 2147 ¶ 60).” slip op. at 13
- Skill levelSkill level board ownOther
“B. Level of Ordinary Skill in the Art We hold that the prior art references asserted in the Petition are representative of the level of ordinary skill in the art. See Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001) (absence of specific findings on “level of skill in the art does not give rise to reversible error ‘where the prior art itself reflects an appropriate level and a need for testimony is not shown’” (quoting Litton Indus. Prods., Inc. v. Solid State Sys. Corp., 755 F.2d 158, 163 (Fed. Cir. 1985)). To the extent that a more specific definition is required, we hold that an ordinary artisan would include one holding a Bachelor’s Degree in Electrical Engineering with two or three years of experience in battery design. That definition comports with the very similar definitions advanced by the parties. In that regard, Petitioner asserts that an ordinary artisan would encompass a person holding a Bachelor’s Degree in Electrical Engineering with three years of experience in battery design. Pet. 8; Ex. 1007 ¶ 9. Patent Owner similarly asserts that an ordinary artisan would include a person holding a Bachelor’s Degree in Electrical Engineering with two years of battery design experience. Resp. 8; Ex. 2105 ¶ 24.” slip op. at 9
- Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)Term construed board ownDecided for patent owner
“In our Decisions to Institute, we construed the 20 Amp Limitation to require that “the battery cells, when configured together in a battery pack, are capable of producing reasonably close to 20 amps of discharge current or greater over the course of delivering their entire rated capacity.” Dec. 5. Neither party disputes that construction, which we adopt for the purposes of this Final Written Decision. To the extent that any other claim term requires express construction, we discuss the construction in our analysis below. See Vivid Techs., Inc. v. Am. Sci. & Eng’g, Inc., 200 F.3d 795, 803 (Fed. Cir. 1999) (only claim terms in controversy need be construed, and then only to the extent necessary to resolve the controversy). The following facts are supported by a preponderance of the evidence.” slip op. at 10
Claim construction§ 103 obviousnesscites KSR · GrahamPatents in suitUS 7,944,173 - PTAB · Sep 2, 2014 · IPR2014-00472 · APJ Glenn J Perry · IPR · Order
The Board granted the parties’ joint motion to terminate the preliminary IPR proceeding and terminated it without a final written decision.
RulingsOther- PTAB / AIA Trials › Other PTAB motions (exclude, strike, seal, additional discovery, rehearing)Granted
“these circumstances, the Board determines that it is appropriate to enter judgment2 and terminate without rendering a final written decision under 37 C.F.R. § 42.72. ORDER It is, therefore, ORDERED that the joint motion to terminate this proceeding is GRANTED and the proceedings are hereby terminated; and FURTHER ORDERED that the settlement agreement shall be treated as business confidential information.” slip op. at 3
NonePatents in suitUS 7,096,358 - PTAB · Aug 25, 2014 · IPR2014-00582 · APJ Glenn J Perry · IPR · Order
The Board granted the parties’ joint motions and terminated the three proceedings before institution, without a final written decision.
RulingsOther- PTAB / AIA Trials › Other PTAB motions (exclude, strike, seal, additional discovery, rehearing)Granted
“Each of the captioned inter partes review cases is in its preliminary stage. The Petition in each of the captioned cases has not been granted. Under these circumstances, the Board determines that it is appropriate to enter judgment4 and terminate each of the trials without rendering a final written decision under 37 C.F.R. § 42.72.” slip op. at 3
NonePatents in suitUS 8,149,124 - PTAB · Aug 25, 2014 · IPR2014-00588 · APJ Glenn J Perry · IPR · Order
The Board granted the parties’ joint motions and terminated the proceedings before institution, without a final written decision.
RulingsOther- PTAB / AIA Trials › Other PTAB motions (exclude, strike, seal, additional discovery, rehearing)Granted
“Each of the captioned inter partes review cases is in its preliminary stage. The Petition in each of the captioned cases has not been granted. Under these circumstances, the Board determines that it is appropriate to enter judgment4 and terminate each of the trials without rendering a final written decision under 37 C.F.R. § 42.72.” slip op. at 3
NonePatents in suitUS 8,466,795
Holdings, summaries, rulings, issues, outcomes, winners and claim constructions shown for a decision were generated by a large language model reading the opinion. They are a guide to the decision, not the decision. Confirm every one against the court's own text before relying on it. Outcomes read from the patent owner’s side. Party names are extracted from the decision and are missing on about 900 short Director denials and scans, which carry the trial number instead.